xref: /illumos-gate/usr/src/uts/sun4/sys/nexusdebug.h (revision 71269a2275bf5a143dad6461eee2710a344e7261)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright (c) 1991-1993,2001 by Sun Microsystems, Inc.
24  * All rights reserved.
25  */
26 
27 #ifndef _SYS_NEXUSDEBUG_H
28 #define	_SYS_NEXUSDEBUG_H
29 
30 #pragma ident	"%Z%%M%	%I%	%E% SMI"
31 
32 #ifdef	__cplusplus
33 extern "C" {
34 #endif
35 
36 /*
37  * Debugging macros
38  *
39  * The DPRINTF macro can be used by setting the debug_print_level to the
40  * appropriate debugging level.  The debug levels are defined in each source
41  * file where this header file is included.  The scoping of debug_info,
42  * and debug_print_level is to the file which included the header file.
43  * If multiple levels need to be output, the values can be 'ored'
44  * together into debug_print_level.  If debug_print_line's bit 1 is set, the
45  * line number of the debugging statement is printed out. If it has
46  * bit 2 set, the macro will drop into either the debugger or the OBP PROM.
47  */
48 
49 #ifdef  DEBUG
50 #include <sys/promif.h>
51 
52 extern void debug_enter(char *);
53 
54 static int debug_info = 1;
55 static int debug_print_level = 0;
56 
57 #define	PRINT_LINE_NUMBER	0x1
58 #define	ENTER_MON		0x2
59 
60 #define	_PRINTF prom_printf	/* For logging to the console */
61 
62 #define	DPRINTF(print_flag, args)			\
63 	if (debug_print_level & (print_flag) && debug_info & \
64 	    PRINT_LINE_NUMBER) \
65 		_PRINTF("%s line %d:\n", __FILE__, __LINE__);	\
66 	if (debug_print_level & (print_flag)) {	\
67 		_PRINTF args;				\
68 	if (debug_info & ENTER_MON)			\
69 		debug_enter("");				\
70 	}
71 
72 #else
73 #define	DPRINTF(print_flag, args)
74 #endif /* DEBUG */
75 
76 #ifdef	__cplusplus
77 }
78 #endif
79 
80 #endif	/* _SYS_NEXUSDEBUG_H */
81